GB/T 4293-1984
abolished_transferred
T/SDSCCE 039-2022
Active
Group standards
T/SDSCCE 039-2022 D-Methyl ester of p-hydroxyphenylglycine, a by-product of ammonium sulfate
T/SDSCCE 039-2022
Price:
$ 20.00
Basic Information
Standard Code:
T/SDSCCE 039-2022
Standard Type:
Group standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Chemical industry
ICS Name:
Salt
Publish Date:
2022-11-30
Implement Date:
2022-12-07
Scope
Main technical content: This document specifies the requirements, test methods, inspection rules, marking and accompanying documents, packaging, transportation, and storage for ammonium sulfate produced as a by-product of D-phenylglycine methyl ester. This document applies to ammonium sulfate solutions generated during the production process of D-phenylglycine, the separation process, and the esterification process. After extraction, decolorization, and centrifugal concentration, ammonium sulfate produced as a by-product of D-phenylglycine methyl ester is obtained. It is mainly used for municipal greening, rare earth mining, and leather degreasing agents, etc.
Development Information
Related Standards
GB/T 6275-1986
Abolished
GB/T 6275-1986 Ammonium hydrogen carbonate for industrial use
GB/T 6276.1-1986
Replaced
GB/T 6276.1-1986 Ammonium hydrogen carbonate for industrial use—Determination of total alkalinity—Volumetric method
GB/T 6276.2-1986
Replaced
GB/T 6276.2-1986 Ammonium hydrogen carbonate for industrial use—Determination of chloride content—Potentiometric method
GB/T 6276.3-1986
Replaced
GB/T 6276.3-1986 Ammonium hydrogen carbonate for industrial use—Determination sulphide content—Visible turbidimetric method
GB/T 6276.4-1986
Replaced